Silvering-machine.



PATENTED FEB. 27, 1906.

0. C. LAVAL.

SILVERING MACHINE.

APPLIGATION ILLED MAY 2-0. 1905.

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fiZWf/ZZOI Claude C Z;Q va Z No. 813,980. PATENTED FEB. 27, 1906. U. G. LAVAL.

SILVERING MACHINE.

APPLIOATION FILED MAY 20. 1905.

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PATENTED FEB. 27, 1906.

C. G. LAVAL.

SILVBRING MACHINE.

APPLICATION FILED MAY 20, 1905.

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Zflz 166 865 X C fizve zzigl' W I myzaaczs CLaua wswmkxq d PATENTED FEB. 27, 1906.

C. G. LAVAL.

'SILVERING MACHINE.

APPLICATION FILED mnzo. 1905.

5 SHEETSSHEET 4.

No. 813,980. PATENTED FEB. 27, 1906. 0. 0. LAVAL.

SILVERING MACHINE.

APPLICATION FILED MAY 20. 1905.

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' CLAUDE o. LAVAL, OF PITTSBUBG, PENNSYLVANIA.

' SlLVERlNG-MACHINE.

Specification of Letters Patent.

Patented Feb. 27, 1906.

To all whom it may concern:

- Be it known that I, CLAUDE C. LAVAL, a citizen of the United States, residing at Pittsburg, in the county of Allegheny and State of Pennsylvania, have invented new and useful Improvements in Silvering-Machines, of which the following is a specification.

This invention relates to a machine for silvering surfaces of non-metal materials, such as glass, to form mirrors, reflectors, and the like.

One of the objects of the invention is the provision of mechanism for conveying-the material being treated in an even and uniform manner over the bed of the machine.

A further object of the invention is the provision of means for even] feeding the liquid substance to the material 7 Another object of the invention is the pro: vision of means for adjusting automatically the conveying mechanism.

A still further object of the invention is the provision of means for heating the coating substance previous to its delivery to the surface treated.

Another object of the invention is to provide various novel adjustments of the several parts constituting said invention.

With these and other objects in view my invention consists in the construction, combination, and arrangement of parts, as hereinafter described, and is embodied in the preferred form in the accompanying drawings, though I desire it to be understood that I may make such changes, variations, and modifications as come properly within the scope of the claims hereunto appended without departing from the spirit of my invention.

In the drawings, Figure 1 is a view in side elevation, partly in section, of the machine. Fig. 2 is a top plan view of the same. Fig. 3 is an end elevation,- partly in section. Fig. 4

is a sectional view of. the hopper heating and feeding means. Fig. 5 is a slde elevation of verse vertical section of the bed and feeding means. Fig. 7 is a detailsection of a portion of the conveying mechanism. Fig. 8 is a detail section of the lower extremity of the hopper and the valve controlling the same.

I Like characters refer to like parts throughout the several figures.

The machine consists of a supporting-table 2, having a bed 3, which has its surface provided with a cover 4, preferably of felt, fixed t0 the bed in any suitable manner, the cover one another and are so arr nged on the shaft as to be near the side edge of the bed of the machine. Also pulleys 12 and 14 are in alinement and are so arranged on the shafts 9 and 10 as to be near the opposite side edge of the bed 3, and over said pulleys 1'1 and 13 and 12 and 14, respectively, pass endless belts 15 and 16, which are of any desired thickness. I v

Intermediate the end edges of the supporting-table 2 and-the shafts 9 and 10 are positioned frictional rollers 17, 18,-and 19, the same being suitably journaled in the brackets 5, 6, 7, and 8 and adapted to maintain the endless belts 15 and 16 taut. Furthermore, below the supporting-table 2 I have provided adjusting devices 20, which in clude rollers 21 on opposite .sides of the machine engagin the endless belts 15 and 16, said rollers 21 ein carried on a shaft 22, andthe latter mounte in slots 23 in supports 24, depending from the lower portion of the supporting-table 2. The said rollers are capable of vertical adjustment in the slots 23, so as to make taut or slacken the endless belts 15 and 16. On the bed 3 of the supporting-table 2 are belt-guide members 25, 26, 27, and 28, each having pockets 29 in series. In each of the pockets 29 are shiftable L-shaped arms 30, which are yieldably supported in said pockets, bein controlled by tension-springs 31-. Rotatab y connected to the inner end fof the arms 30 are frictional rollers 32, the

latter engaging the outer edges of the belts the bed, partially in section. Fig. 6 is a trans- 15 and 16 and the inner portions of the beltguiddmembers 25, 26, 27, and 28 overhanging the belts to maintain the latter in close proximity to'the bed 3 of the machine.

I t e openingand below the latter.

' plu's'liquid substance fed thro to the material treated and is l I trough 36 'be' most edges of the belts 15 and 16 to convey said material throu bout the entire len th of the'bed of the mac e. The friction rollers 32 are automatically adjustable to maintain the endless belts constantly in engagement with the material fed over the bed of ing-trough 36, cylindrical in form and haying edges 37 and 38 projecting beyg ifi I e feedin t'rough is provided with a slot 39, arrange 1 longitudinally thereof and wed" eshaped in cross-section, through which t e ooved' liquid: substance is fed tothe material beingtreated through the slot 35." Said ledges 37 mass-m for the purpose of catching the surined-therefrom in any suitable manner, saidfeedingadjustably connected to-the supporting-tab e 2, so that the same-may be raised or ow'ered in a vertical direction toand from' the material treated. At one side of the supporting-table 2 is connecteda hopper 40, ha a heating-chamber'41 and a cover 42, the atter being provided with an 0 e 43 and a hinged cap. 45, thro hw "ch quid substancefis introduced into t ehopper 46, the said hopper having areduced outlet extremity and terminating-m a mouth portion 44. .Leadingfrom said mouth portion 44 of the hopper 40 is a'feed-pipe 46, a

which is connecte to the feeding-trough 36. Leading to the heatingchamber-41 of the hopper 40 is a heating-pi e 46', terminating in a burner 47, where y eat is produced in the chamber 41 of the hopper 40, so as to liquefy the substance contained in the hopper 40 previous to its being fed to the trough 36-andto maintain the same-in aliquid state throughout the operation of the machine. To control the supply ofsubstance to the feed-trough 36 through the feed-pipe 46, a valve 48 is provided, the latter having connected thereto a stem 49, terminating-exteriorly of the hopper 40 and adjustably operated by a hand-wheel 50, the same engaging a threaded end 51 of saidstem 49, said handwheel 50 being supported exteriorlyof the hop er by a yoke-piece 52, which is secured to tlib hopper in any suitable manner. Above the bed 3- of the sup orting-table 2 is a pressure-roller 53, whic is yieldably-supported in brackets 54 and 55. The pressure-roller 53 is for the purpose of holding the material being treated 1n contact with the bed 3 of the h the slot 39 I alas machine and to prevent any displacement materials to be treated, said ontake-table 57 bein so arranged 'as' to have its upper 'face leve with the bed 3 of the'machine.

so as to afford easy handling of the 1 4 In the o eration of the machine motion is =im arted mm the driving-pulley 55 to the table57 to the bed 3 of the supporting-table.

u leys 1-3 and-'14, the latter causing the endess belts15 and 16 to travel across the bed- 3 of the supporting-table 2 in a lon itudinal direction, and the material is fed etween the said endless belts 15 and.16 from the ontake- 2 and between the pressure-r01 ers 53 and onwardly over the feed-slot 35 and liquid-containing trough 36, where the same receiveson its under face a coating of amalglam from .the elongated slot 39 in said troug Qend of the supp and as the said material advances to the delivery orting-table 2 said coating is cooled by coming in contact with the atmoshere, and when said material is delivered cm the machine the same is ready for use.

It is apparent that the belt-guide members E25, 26,27, and 28, including the automatic- 'ally-ad'ustable frictional rollers 32, which jare yiel ably sup orted in the pockets 29 of said edges of the belts to constantly contact with guide mem ers, cause the innermost 'IOO the edges of the material treated, thereby asthroughout the length of the suring a continuous uniform travel of said material, so that the same may be conveyed bed 3 of the su orting-table. Furthermore, by having t e 'ctional rollers 32 yieldably supported in the pockets-29 of the guide members 25, 26, 27, and 28 an automatic adjustment thereof is permitted for different widths of material desired to be treated. During the feeding of the liquidsubstance to the material treated it ma be desired to apply a coating of vary ing t 'cknesses, and to accommodate this variation the trough 36 is adgusted vertically awayfrom the supporting-ta le 2. The hopper 40 1 is arranged above said supporting table, and the 'quid substance contained therein will therefore freely flow through the elongated slot 39 and the opening 35 in the table, and should it happen that any excess of liquid substance flows from said elongated slot 39 the same will be caught by the grooved led es 37 and 38.

0 control the supply of liquid substance from the hopper 40 to the feedipe 46, the hand-wheel 50 is manipulated, which in turn will cause the raisingor lowering of the stem 49, having the valve 48, controlling the opening or mouth portion 44 ofsaid hopper 40, so that when sai stem 49 is elevated or lowered the valve 48 will regulate the mouth 44 of the hopper by the opening or closing thereof and allow the contents of the hop er 40 to be admitted to or cut off from the eed-pipe It is evident thatby hav1ng'the.heat1ng- "pipes 46 terminatin in a burner 47 and situated in a heating amber or compartment 0 enings 58, and the same when brought to 'a c osed position fit snugly into the mouth 44 of the ho per '40, and thereby insures a ti ht closing 0 said mouth 44, and when the va ve is lifted from the mouth 44 to open the same the substance contained in the hopper 40 will flow freely through the openings 58 to the feed-pipe 46 and then into the trough 36 and subsequently to the surface of the material being treated. However, the valve may be of any other suitable construction. Having thus fully described my invention, what I claim as new, and desire to secure by Letters Patent, is- I 1. A machine of the class described including a su porting-table, oppositely-disposed frictiona conveying means or moving material being treated over said table, means on the table for automatically adjusting said conveying means, and means for applying liquid coating substance to said material.

2. A machine of the class described including a supporting-table; frictional conveying mechanism thereon, means for automatically adjusting said frictional mechanism to maintain the same in contact with the material, and means for feeding liquid substance to the latter.

3. A machine of the class described includ: ing a supportingtable, endless conveying mechanism at opposite sides of said table for frictionally en aging the material, automatically-adjustalie guide members for the conveyers, and means for feeding a liquid coating to the material.

4. A machine of the class described including a supporting-table, an ontake-table at one end thereof, endless conveying mechanism for frictionally engaging the material, automatic guide members for said conveying mechanism, a hopper, and means cooperative therewith for feeding liquid coating to the material treated.

- 5. A machine of the class described including a supporting-table, rotatable endless conveying mechamsm, means for adjusting the same, automatic guide members for the conveying mechanism, and means for feeding liquid coating to the material treated.

convey the same over said table, means for adjusting the belts, automatic guide means for the latter, and means for supplying a liquid coating tosaid material.

' 7. In a machine of the class described, a

supporting-table, traveling endless belts to fnctionally engage the material for conveying the same over said table, adjustable guide members for said belts, automatic means for maintaining the belts in frictional engagement with the material being treated cooperative with said members, a supplypipe, a feed-trough connected to said pipe for introducing a liquid coating to the material treated, and a hopper for supplying liquid to said feed-pi e. 8.- A macliine of the class described includendless conveying mechanism, adjustin able guide members for the latter, and automatic, adjustable means carried by said members for maintaining the said conveying mechanism in frictional engagement with the material being treated.

9. A machine of the class described including endless conveying mechanism, adjustable guides therefor, automatic means cooperative with said guides for maintaining the said conveyin mechanism in frictional engagement wit the materialbeing treated, and

'means for feeding a liquid coating to the maleys, guide members for said conveyers, automatic means cooperative with said members for maintaining said conveyer in frictional engagement with the material being treated, and means for feeding liquid to the material treated.

12. A machine of the class described including a supportin -table having a transverse opening, an ad ustable feed-trough below said opening, a liquid-receiving hopper having a feed-pipe communicating with said trough, a valve mechanism controlling the sup y to said trough, ulleys on said table, end ess conveying mec anism on said pulleys, and adjustable guides having automatic means for maintaining said conveying mechanism in frictional engagement with the material being treated.

13. A machine of the class described including a supporting-table having a trans verse opening, an ad ustable feed trough below said opening, a liquid-receiving hopper having a feed-pipe communicating with said trough, a valve mechanism controlling the sup ly'to said trough, pulleys for said table,

' anism taut.

14. A machine of the class described having a sup ortingtable vwith intermediate means for ceding a coating substance thereto, and automatically-ad ustable frictional edge-engaging devices for conveying the material to be coated over the table.

15. A machine of the class described having a sup orting-table with an intermediate opening or feeding a coating substance t erethrough, and means for frictionally enaging the material for conveying the same to ecoated over the table close to said opening.

16. A machine of'the class described having a sup orting-table with an intermediate 0 ening or feeding a coating substance t erethroughila receptacle adjacent to said opening for t e coating substance, frictional enga gmecham'sm for conveying the maten'afiih be coated over the tab e and means for holding the material close to said openin i7. A machine of the class described having a sup orting-table with an intermediate 0 ening or feeding a coating substance t erethrough, an adf ustable receptacle adjacent to said opening or the coating substance,

and mechamsm frictionally contacting with the material for conveying the same to be coated over the table close to said opening.

- 18. A machine of the class described having a sup orting-table with an intermediate opening or feedin a coating substance t erethrou h, an a justable receptacle under the tab e adjacent to the opemng for the coating substance, mechanism for conveying the material to be coated over the table close to said opening, and means for automatically adjusting said mechanism to frictionally engage t e same with the material.

19. ing a su porting table with intermediate means for cedinga coating substance thereto, automaticallyadjustable conveying mechanism, and means for regulatin the feed of the coating substance to the tab e.

20. c A machine of the class described having a supporting-table with an intermediate machine of the class described havlpening for feeding a coating substance erethrough, an a justable feed-rece tacle aving o positely disposed 1edges, elow said opemng the latter extending beyond the opening and mechanism for conveying the materia to be coated over the table close to said openin 21. A machine of the class described having a supporting-table provided with an intermediate openin an adjustable feed-receptacle havin a s ot coextensive with said opening undert etable adjacent to said opening, an automatically-adilustable conveying mechanism for en agin t e edges of the material to be coated, 8115111881113 for supplying thel liquid substance to the said feed-receptac e.

22. A machine of the class described including a supporting-tablehavin frictional edge-en aging conveying mechamsm for the materia automatically adjustable guide means for the saidmechanism, and means for feelding liquid coating substance to the mater1a 23. A machine of the class described having a supporting-table rovided with an intermediate opening, a eed-receptacle coextensive with said openin ledges forming troughs on said receptacleielow the opening and extending beyond the same, oppositelydisposed edge-engaging conveying mechanism for the materlal means for automatically adjusting said mechanism, and means for su plying liquid substance to the said receptac e.

24. A machine of the class described having a liquid coating feed device for the material, automatic frictional edge-en aging mechanism for conveying the materia to be coated over the table, and a yieldable pressure means above'the latter.

25. A machine of the class described having automatic frictional edge-en aging mechamsm for conveyin the materia to be coated over the same, yiel able pressure means above the table at one end thereof, and means for supplying liquid coating substance to the material.

In testimony whereof I have hereunto set my hand in presence of two subscribing wit- CLAUDE e. LAVAL.

IIGSSGS.

Witnesses:

SAMUEL CHAPPELEAR, WM. G. GmsoN.

ICO 

